Have any of you ever had low b12 levels? I went to a new Dr today and she was looking back through my chart from the other Dr and noticed that back when all my symptoms were beginning my b12. Levels were on the low side of normal, 200 something! She said that low b12 can cause a lot of neurological symptoms.... so she took another blood test to see what the levels are now! Also said that when this all began my free t4 thyroid level was high so she said that could also be a major issue as to what's causing all of my symptoms! She was baffled at the fact the other Dr didn't treat me for either of those!! She rechecked my t4 again as well and says according to the results she will treat appropriately and hopefully it will alleviate my symptoms!!! Will keep you all updated when I find out results! I have a glimmer of hope that I may finally be getting to the root of all this madness! Let me know what ya think!!??